Calling card may refer to:
Cards Visiting card, a card carried by individuals to present themselves to others Business card, a small card with business information that is given for convenience and as a memory aid Tart card, an ad stuck to a phone box to advertise the services of a call girl Telephone card, a small card, usually resembling a credit card, used to pay for telephone services
Other uses Calling card (crime), a signature token or characteristic of a crime used by a serial criminal Slang for animal feces, especially when encountered in an undesirable place Calling Card, a 1976 album by Irish blues-rock musician Rory Gallagher "Calling Card" (Suspects), a 2014 television episode